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Note 8 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

						Weighted
						Average
		Shares				Fair Value
Nonvested at beginning of the period			228,646			$	35.84
Grants			84,685				50.34
Vested			(34,053	)			34.79
Forfeited			(2,350	)			42.24
Nonvested at end of the period			276,928			$	40.54

Corporate and Bank Board Members [Member]

Notes Tables

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

						Total Cost
Grant Year		Shares Granted				(in thousands)			Covered Period
2023			11,529			$	350		June 1, 2023 - May 31, 2024
2024			11,316				423		June 1, 2024 - May 31, 2025
2025			10,007				444		June 1, 2025 - May 31, 2026

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Tabular disclosure of share-based payment arrangement.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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